Whether you’re in favor of food rules or totally against any sort of structured plan, it’s pretty hard to deny that we Americans crave them. Proof is in the popularity of programs, like the Whole 30, the ketogenic diet, the carnivore diet, intermittent fasting, and others, which promote eliminating entire food groups and/or following certain (often strict) guidelines. Do we like a good no-sugar, no-grain, no-alcohol challenge or is there something else at play?